Features:100% brand new and high qualityThis product is mainly used for controlling the DC motorSpeed It is made of high quality material, with long serving lifeDigital display Panel design, easy for reading and operatingDC Motor Controller can set the time of DC Motor Slow Start and Stop, easy to operateSpecifications:Input voltage: DC6-60VOutput voltage: linear under loadOutput current: 0-30AContinuous current: within 20ASpeed control mode: jog + -Speed regulation range: 0-100%Control frequency: 21KHZType of connection: Barrier terminalSupport motor: brush motorSignificant speed: 0-100%Size: 10 x 6cm / 3.94 x 2.36inWeight: 100gDetail:1.Slow start time setting Function 1: 000 - 100 Slow start to 100% Speed time adjustable between 0-10 seconds Default is 1 second.2.Slow stop time setting Function 2: 000 - 100 Slow stop time is adjustable between 0-10 seconds Default is 1 second.3. Speed lower limit setting function 3: 000 - 080 The minimum speed is between 0-80% adjustable and less than the maximum speed setting The default is 0.4. Speed upper limit setting function 4: 000 - 100 The maximum speed is adjustable between 0-100% and greater than the minimum speed setting The default is 100%. 5.Acceleration and deceleration value setting Function 5: 001 002 005 010 015 020 025 Each time you press the plus/minus key, the speed changes correspondingly by 1%, 2%, 5%, 10%, 15%, 20%, 25%.Package included:1 x Motor ControllerNote:1.The input voltage must differentiate "+" ,"-", can't input 220V voltage2.The input voltage should be equal to the rated voltage of the motor within 6-60V